Fix translate newsletter.js
diff --git a/support/doctype/newsletter/newsletter.js b/support/doctype/newsletter/newsletter.js
index 0531196..b532b29 100644
--- a/support/doctype/newsletter/newsletter.js
+++ b/support/doctype/newsletter/newsletter.js
@@ -16,7 +16,7 @@
 	erpnext.hide_naming_series();
 	if(!doc.__islocal && !cint(doc.email_sent) && !doc.__unsaved
 			&& inList(wn.boot.profile.can_write, doc.doctype)) {
-		cur_frm.add_custom_button('Send', function() {
+		cur_frm.add_custom_button(wn._('Send'), function() {
 			return $c_obj(make_doclist(doc.doctype, doc.name), 'send_emails', '', function(r) {
 				cur_frm.refresh();
 			});